PISCES--TUNNY...PILOT FiSH. 749 
employ in the whole, a capital of nearly two hundred thousand pounds. The 
mackerel fishery on the coast of New England is very productive. It is 
carried on in small schooners of twenty or thirty tons. 
Pe EU NN Xt 
Retats not only the character, but the habits of the mackerel. They resort 
in vast shoals to the Mediterranean, at certain seasons, and, from the earliest 
periods of history, have constituted a considerable branch of commerce there. 
Tne tunny, however, differs greatly from the mackerel in size. One which 
Mr Pennant saw at Inverary in Scotland, weighed four hundred and sixty 
pounds. It was seven feet ten inches in length, and the circumference in 
the largest part was five feet seven, and near the tail only one foot six. The 
pieces, when fresh cut, appear like raw beef but when boiled turn pale, and 
have something the flavor of salmon. 
TEESE OY 1S H2 
Hy. 4.7 and banded body, with four loose spines on the back; a com- 
press J !.ead, rounded off in front; a small mouth, the jaws of which are 
of equal iength, end furnished with small teeth. The palate has a curved 
row of teeth, and the tongue has teeth all along. 
This species is found in the Mediterranean, Southern ocean, East Indies, 
and Cape of Good Hope. It grows toa foot and a half in length, and 
derives its name from being commonly seen with the shark, to which it 
appears to point out its prey. The circumstance of its guiding the shark, 
1 Thynnus vulgaris, Cuy. This genns has a projecting ridge on each side of the tail, 
and a row of pointed teeth in each jaw; anal and second dorsal fins subdivided; first 
dorsal fin prolonged almost to the second, and sometimes touching it. 
2 Centronotus ductor, Lace. This genus has one dorsal fin with spines before ; ventral 
fins supported, as in general, by some rays, the most of which are short; sides of the ‘ail 
carmated ; anal shorter than the dorsal fin, with sometimes free spines. 
63* 
